michaelshermer.com

https://michaelshermer.com· First analyzed 20 May 2026· Updated 20 May 2026

Export

michaelshermer.com

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.21.6.148

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

dana.ns.cloudflare.com.lee.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

293 ms10%

Speed Index

381 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

19 KB

40 requests

Image Optimization

WebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

shermerCustom

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

12 Technologies Detected

Analytics

Plugins

CSS Frameworks

Fonts

Email Marketing

Advertising

Social

CDN

Languages

SEO Analysis

C67/100

Meta Tags7/15

Content10/12

Headings1/8

Technical20/25

E-E-A-T3/7

Images4/7

Links2/5

URL5/5

Social5/5

Freshness4/4

Mobile3/4

Indexability3/3

michaelshermer.commichaelshermer.com

Michael Shermer

Dr. Michael Shermer is the Founding Publisher of Skeptic magazine, the host of the Science Salon Podcast, and a Presidential Fellow at Chapman University whe...

Description truncated.

Title Length15 chars

Recommended: 50-60 chars (~94px / 580px)

Description Length458 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

10 issues found

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Crawlability

Sitemap

robots.txt

21 rules

Allows all crawlers

Local SEO

Local Search Readiness

10/100

Poor

3 13 1

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D50/100

Bot Access

20/25

Machine Read.

9/25

Schema Data

4/25

Citation

17/25

AI Bot Access

14/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

Machine Readability

llms.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

blockquotes

Text ratio:10%

Words:987

Token eff.:Optimal

Sections/1K:4.1

Depth:1/5

Structured Data

3 JSON-LD

WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary134w

Descriptive Headingsavg 5.5w

Canonical URL

Open Graph3/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

AI readiness recommendation preview...

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Sponsored

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

80/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

8/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

15/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

14/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

11/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

12/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

2 recommendations

•Accessibility recommendation preview...

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Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

71/100

A+

2 mg

CO₂e / view

19.0 KB

Page Weight

95%

Cleaner Than

New Visitor

2 mg

Returning (cached)

1 mg

Annual (10K/mo)

228 g

Emission Segments

Data Center

<0.001 g

Network

<0.001 g

Device

1 mg

Resource Breakdown

HTML

18.5 KB

Other

451 B

Green Hosting Verified

Cloudflare

GWF Verified

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

61%Fair

Interactive

HTTPS

WAF

78d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

09.05.2026

Valid Until

07.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

michaelshermer.com*.michaelshermer.com

SHA-256 Fingerprint

80:70:47:C6:A9:20:29:7A:9B:B9:09:9B:A5:1D:5F:46:D5:01:03:91...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cf-cache-status

DYNAMIC

cf-ray🇫🇷 Paris

9febe76418ac9f06-CDG

content-encoding

zstd

content-type

text/html; charset=UTF-8

date

Wed, 20 May 2026 14:06:47 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mail.michaelshermer.com

Domain Information

michaelshermer.com

Domain Age

20 years

Created

28.04.2006

Expires

28.04.2027

Last Updated

29.03.2026

Registrar

Cloudflare, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

81/100

Mobile Friendly1 breakpoint

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

Viewport

width=device-width, initial-scale=1.0

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Verdana + Georgia

WCAG Partial

57/100

Readability

/30

19/30

14px · LH 1.80

Hierarchy

/20

11/20

2x ratio

WCAG

/25

15/25

1:1 min contrast

Performance

/25

12/25

4 fonts · 2 req

Heading Font

Verdana

Sans29px

Body Font

Georgia

Serif14px

Contrast Ratio

1:1

26 issues

Reading Comfort

~40 CPL

Narrow lines

29px

22px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

⚠️ Hard to read: Flesch score 43/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 26 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

GGoogle Fonts Buy on MyFontsFlesch 43

Color Palette

9 unique colors

10.4:1 AAA Light

#ffffff

Background· 40%

#3b4141

Primary· 23.800000000000004%

#0b1415

Secondary· 6.1%

#516264

Secondary· 4.4%

#263334

Secondary· 3.2%

#174144

Secondary· 1.8%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Social Media

Twitter/X WidgetsFree

AddThisFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

16 Resources

Scripts

Styles

Async

Defer

Top Script Sources

platform.twitter.com(3)googletagmanager.com(1)cdnjs.cloudflare.com(1)michaelshermer.com(1)static.cloudflareinsights.com(1)

Website Identity

Michael Shermer

Dr. Michael Shermer is the Founding Publisher of Skeptic magazine, the host of the Science Salon Podcast, and a Presidential Fellow at Chapman University where he teaches Skepticism 101. For 18 years he was a monthly columnist for Scientific American. He is the author of New York Times bestsellers W

michaelshermer.com/

20 years old

Location detected: 🇨🇦 Canadavia ip

Cloudflare, Inc.

Social Profiles

Facebook X (Twitter)

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Last analyzed: 20 May 2026 at 14:07

Historical Analysis & Change Tracking